Churn



M. J. DOW. OHURN.

(No Model.)

No. 411,328. Patented Sept. 17, 1889.

UNITED STATES PATENT OFFICE.

MATTHEWV J. DOW, OF ALBA, MICHIGAN.

CHURN.

SPECIFICATION forming part of Letters Patent No. 411,328, datedSeptember 17, 1889. Application filed March 5, 1889. Serial No. 301,893.(No model.)

To to whom it may concern:

Be it known that I, MATTHEW J. DOW, a citizen of the United States, anda resident of Alba, in the county of Antrim and State of Michigan, haveinvented certain new and usefullmprovements in Churns; and I do herebydeclare that the following is a full, clear, and exact description ofthe invention, which will enable others skilled in the art to which it ay pertains to make and use the same, reference being had to theaccompanying drawings, which form apart of this specification, and inwhich- Figure l is a side elevation of my improved churn. Fig. 2 is avertical sectional view of the same through the axis of the centraldasher-sta'ff. Fig. 3isa perspective view of the skeleton pillar whichforms the bearing for the operating mechanism; and Figs. 4. and 5 arecross-sections taken,respectively, on lines as as and 'y y of Fig. 2.

Like letters of reference denote correspond ing parts in all thefigures.

My invention has relation to that class of churns in which twoconcentric vertical dashers revolve in opposite directions within astationary churn-body orcream-receptacle; and it consists in thedetailed construction and combination of parts which will be hereinaftermore fully described and claimed.

In the accompanying drawings, the letter A designates the churn-body orcream-receptacle, the bottom of which is provided with a gudgeon orbearing B for the lower end of the central dasher-staff, (shown at O.)The removable cover D is provided with a gas-vent E and a centralcircular aperture F for the insertion of the hub G. Upon the top of thecover and concentric with the aperture F is fixed by its annular bottomflange h a vertical skeleton frame or pillar H, the upper part of whichforms a hollow cylinder II, closed on top and having a transverse insidediaphragm I. The upper end of the central dasher-staff G projects upthrough a central aperture t' in the diaphragm I and is journaled in theclosed top of the cylinder. The hub Gr has a tubular shaft or extensionJ encircling the central staff C and concentric to said central shaft.

Upon the central shaft 0' is secured a bevel-pinion c, and upon theconcentric tubular shaft J is fastened a corresponding bevel-pinion j,both of which intermesh with the cogged drive-wheel K, which is operatedby a crank L and handle 1. It follows that ,wvhen this crank is turnedthe concentric shafts C and J will revolve in opposite d1- rections.

The central shaft or staff 0 terminates at its lower end in the paddleor dasher-blade C of the shape shown in the drawings, and having asuitable number of apertures a. The hub G, which, as we have seen, formsthe lower end of the tubular staff J, has inserted into it from theunder side the side pieces M M of the outside dasheig the lower part Mof which conforms in shape to that of the inside paddle G which isprovided with a downwardl y-proj ectin g pivot O, projecting through anaperture in the lower cross-bar N, which connects the lower ends of thesides of the outside dasher M. This construction, it will be seen, addsgreat strength to the dashers, which are held in their proper centralposition during the operation of the churn by the pivot 0 working in thecentral gudgeon B. It will also be seen that the bearings for theworking parts are very compact and solid, occupying but little space,and at the same time presenting a very neat and finished appearance.

Having thus described my invention, I claim and desire to secure byLetters Patent of the United States- The combination, in a churn, of thesta tionary churn-body, the removable cover provided with a gas-vent andhaving a central circular aperture, the skeleton pillar H, terminatingat its upper end in the hollow cylinder H and provided with the integralhorizontal diaphragm I, the central staif O, the concentric tubularstaff J, said staffs or shafts C and J being concentric with theskeleton frame or hearing II and its cylindrical extension, and thedescribed mechanism for operating the dashers, substantially as and forthe purpose herein shown and set forth.

In testimony that I claim the foregoing as my own I have hereuntoaffixed my signature in presence of two witnesses.

MATTHEW J. DOW.

Witnesses:

VAN B. BELL, NICHOLAS K. WILKE.

